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Chapter 2

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Subject: 
Chemistry
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Tags: 
Chemistry
Science
Physics
Chemical properties
Mass
Stoichiometry
Amount of substance
Atomic mass
Atomic theory
Isotope
Chemical element
Chemical bond

Chapter 2.1- 2.3 (pages 41-48) Law of conservation of mass- Mass is neither created nor destroyed Law of definite proportion- a given compound always contains exactly the same proportion of elements by mass. Law of multiple proportions- When two elements form a series of compounds, the ratios of the masses of the second element that combine with 1 gram of the first element can always be reduced to small whole numbers Dalton?s Atomic Theory- -Each element is made up of atoms -The atoms of a given element are identical -Chemical compounds are formed when atoms of diff elements combine with each other -Chemical reactions involve reorganization of the atoms Dalton prepared first table of atomic masses

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